问题 多项选择题

某一原油罐区,固定顶立式罐直径均为15米。某日因雷击致使固定冷却系统损坏,其中一个油罐着火,并造成200平方米的流淌火,距着火罐22米范围内有邻近罐3个。市消防通信指挥中心接警后调派力量前往火场扑救。

扑救该火灾可采取以下冷却措施,正确的是()。

A、开启固定冷却系统冷却临近罐

B、利用直流水枪、带架水枪或水炮冷却着火罐

C、冷却水喷射至着火罐壁上沿,要求均匀,不留空白点

D、开启固定冷却系统冷却着火罐

E、使用泡沫钩管冷却着火罐

答案

参考答案:A, B, C

单项选择题

In 1998 consumers could purchase virtually anything over the Internet. Books, compact discs, and even stocks were (1) from World Wide Websites that seemed to (2) almost daily a few years earlier, some people had predicted that consuners accustomed to shopping in stores would be (3) to buy things that they could not see or touch (4) . For a growing number of time-starved consumers, however, shopping from their home computer was proving to be a convenient (5) to driving to the store.

A research estimated that in 1998 US consumers could purchase $ 7.3 billion of goods over the Internet, double the 1997 total. Finding a bargain was getting easier, (6) the rise of online auctions and Websites that did comparison shopping on the Internet for the best (7) .

For all the consumer interest, (8) in eyberspaee was still a largely (9) business, however. Internet pioneer Amazon. eom, which began selling books in 1995 and later (10) into recorded music and videos, posted (11) of $ 153.7 million in the third quarter, up from $ 37.9 million in the same period of 1997. Overall, (12) , the company’ s loss widened to $ 45.2 million from $9.6 million, and analysts did not expect the company to turn a profit (13) 2001. (14) the great loss, Amazon. tom had a stock market value of many billions, reflecting investors’ (15) about the future of the industry.

Internet retailing appealed (16) investors because it provided an efficient means for reaching millions of consumers without having the cost of operating (17) stores with their armies of salespeople. Selling online carried its own risks, however, (18) so many companies competing tor consumers’ attention, price competition was (19) and profit (20) thin or nonexistent.

2()

A. turn up

B. show up

C. bring up

D. spring up

多项选择题